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SDL_syscdrom.c
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2006 Sam Lantinga
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Sam Lantinga
slouken@libsdl.org
*/
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#include "SDL_config.h"
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#ifdef SDL_CDROM_DC
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/* Functions for system-level CD-ROM audio control */
#include <dc/cdrom.h>
#include <dc/spu.h>
#include "SDL_cdrom.h"
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#include "../SDL_syscdrom.h"
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/* The system-dependent CD control functions */
static const char *SDL_SYS_CDName(int drive);
static int SDL_SYS_CDOpen(int drive);
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static int SDL_SYS_CDGetTOC(SDL_CD * cdrom);
static CDstatus SDL_SYS_CDStatus(SDL_CD * cdrom, int *position);
static int SDL_SYS_CDPlay(SDL_CD * cdrom, int start, int length);
static int SDL_SYS_CDPause(SDL_CD * cdrom);
static int SDL_SYS_CDResume(SDL_CD * cdrom);
static int SDL_SYS_CDStop(SDL_CD * cdrom);
static int SDL_SYS_CDEject(SDL_CD * cdrom);
static void SDL_SYS_CDClose(SDL_CD * cdrom);
int
SDL_SYS_CDInit(void)
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/* Fill in our driver capabilities */
SDL_CDcaps.Name = SDL_SYS_CDName;
SDL_CDcaps.Open = SDL_SYS_CDOpen;
SDL_CDcaps.GetTOC = SDL_SYS_CDGetTOC;
SDL_CDcaps.Status = SDL_SYS_CDStatus;
SDL_CDcaps.Play = SDL_SYS_CDPlay;
SDL_CDcaps.Pause = SDL_SYS_CDPause;
SDL_CDcaps.Resume = SDL_SYS_CDResume;
SDL_CDcaps.Stop = SDL_SYS_CDStop;
SDL_CDcaps.Eject = SDL_SYS_CDEject;
SDL_CDcaps.Close = SDL_SYS_CDClose;
return (0);
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static const char *
SDL_SYS_CDName(int drive)
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return "/cd";
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static int
SDL_SYS_CDOpen(int drive)
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return (drive);
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}
#define TRACK_CDDA 0
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static int
SDL_SYS_CDGetTOC(SDL_CD * cdrom)
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CDROM_TOC toc;
int ret, i;
ret = cdrom_read_toc(&toc, 0);
if (ret != ERR_OK) {
return -1;
}
cdrom->numtracks = TOC_TRACK(toc.last) - TOC_TRACK(toc.first) + 1;
for (i = 0; i < cdrom->numtracks; i++) {
unsigned long entry = toc.entry[i];
cdrom->track[i].id = i + 1;
cdrom->track[i].type =
(TOC_CTRL(toc.entry[i]) ==
TRACK_CDDA) ? SDL_AUDIO_TRACK : SDL_DATA_TRACK;
cdrom->track[i].offset = TOC_LBA(entry) - 150;
cdrom->track[i].length =
TOC_LBA((i + 1 <
toc.last) ? toc.entry[i + 1] : toc.leadout_sector) -
TOC_LBA(entry);
}
return 0;
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}
/* Get CD-ROM status */
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static CDstatus
SDL_SYS_CDStatus(SDL_CD * cdrom, int *position)
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int ret, dc_status, disc_type;
ret = cdrom_get_status(&dc_status, &disc_type);
if (ret != ERR_OK)
return CD_ERROR;
switch (dc_status) {
// case CD_STATUS_BUSY:
case CD_STATUS_PAUSED:
return CD_PAUSED;
case CD_STATUS_STANDBY:
return CD_STOPPED;
case CD_STATUS_PLAYING:
return CD_PLAYING;
// case CD_STATUS_SEEKING:
// case CD_STATUS_SCANING:
case CD_STATUS_OPEN:
case CD_STATUS_NO_DISC:
return CD_TRAYEMPTY;
default:
return CD_ERROR;
}
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}
/* Start play */
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static int
SDL_SYS_CDPlay(SDL_CD * cdrom, int start, int length)
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int ret =
cdrom_cdda_play(start - 150, start - 150 + length, 1, CDDA_SECTORS);
return ret == ERR_OK ? 0 : -1;
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}
/* Pause play */
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static int
SDL_SYS_CDPause(SDL_CD * cdrom)
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int ret = cdrom_cdda_pause();
return ret == ERR_OK ? 0 : -1;
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}
/* Resume play */
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static int
SDL_SYS_CDResume(SDL_CD * cdrom)
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int ret = cdrom_cdda_resume();
return ret == ERR_OK ? 0 : -1;
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}
/* Stop play */
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static int
SDL_SYS_CDStop(SDL_CD * cdrom)
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int ret = cdrom_spin_down();
return ret == ERR_OK ? 0 : -1;
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}
/* Eject the CD-ROM */
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static int
SDL_SYS_CDEject(SDL_CD * cdrom)
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}
/* Close the CD-ROM handle */
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static void
SDL_SYS_CDClose(SDL_CD * cdrom)
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void
SDL_SYS_CDQuit(void)
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#endif /* SDL_CDROM_DC */
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/* vi: set ts=4 sw=4 expandtab: */